So for a while I was looking at Jack Nicklaus and Arnold Palmer autos. One thing that always stuck out was that Jack's autos were always substantially less than Jack. Is Jack that much more revered in golf the way MJ is in basketball? Does he just not sign that much? Any input from golf collectors is appreciated. Thx

In short, yes, Jack is more desirable namely for the #18. With Tiger's downfall/slump/what the hell ever is going on, Jack remains the greatest professional (Bobby Jones was an amateur) golfer ever. Arnie is great, but honestly, if you look at his on course accomplishments, he is inferior to guys that sell for less than him (Gary Player is most notable).
Jack also was much more limited in the Leaf products. 2002 UD golf is the only product where Arnie has less auto's than Jack, which is simply due to Arnie not signing in 2002.
Hope that helps!